The HPRI will be used to measure pain. This is a plastic VAS with a sliding marker that moves within a grove. The side facing the patient appears like a traditional VAS. It has a 10cm line with the anchors "No Pain" and "Worst Pain Imaginable". The opposite side of the instrument is a 10 cm scale with markings every 0.5cm that enables the clinician to read and record numerical values (see figure in appendix). Scores will be recorded to the nearest 0.5cm. All patients will have a baseline assessment of pain immediately prior to the procedure. Subjects will be interviewed within one hour following the procedure and will be asked to quantify their pain during the procedure.Patients will also complete a questionnaire following the procedure in which they will score their level of pain control during the procedure on a 5-point Likert scale, which was used in the bronchoscopy study .